Finn asks- "BTW, what happens when you lay down (at a 20 degree) angle a radiator that is designed to be upright?" I always wondered about that myself. The stock FD (3rd gen) radiator has to be at about a 45 degree angle (?) to the incoming airstream. And it has 2 "supplemental" staged electric fans (no pump fan), one is always on if the AC is on, the fans have different blades and different speeds controlled by ECU and temp sensor. I suppose the fins are canted or perhaps they are best tilted to airflow to create turbulence and help remove some heat..........don't know much about radiator design............ MW -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html